Clock Setup Issue on STM32H743 with 25MHz HSE for Maximum 480MHz System Clock

oseaw.1 · ‎2023-04-06

I am reaching out to seek your expertise regarding a clock setup issue that I encountered while using the STM32H743 microcontroller.

My goal is to use up to a maximum of 480MHz system clock using a 25MHz HSE. However, I have encountered some errors in red while setting up the clock in STM32CubeIDE. I am unsure why these issues have occurred, and I would greatly appreciate any insights you may have.

My main question is whether it is possible to achieve a 480MHz system clock using a 25MHz HSE. I would be grateful for any advice you may have regarding this matter.

Foued_KH · ‎2023-04-06

Hello @oseaw.1 ,

For the STM32H743 , we have 3 revision :

Use silicon revision V devices to reach a maximum frequency of 480 MHz.

Foued

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.

View solution in original post

Foued_KH · ‎2023-04-06

Hello @oseaw.1 ,

For the STM32H743 , we have 3 revision :

Use silicon revision V devices to reach a maximum frequency of 480 MHz.

Foued

To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.